Typewriting machine



3 Sheets-Sheet ll! llllllll ||1|| J. FELBEL TYPEWRITING MACHINE Filed April 8, 1926 IN VEN TOR.

WITNESSES Aug. 14, 1928.

J. FELBEL TYPEWRITING MACHINE Filed April 8, 1926 3 Sheets-Sheet 2 l wu IN VEN TOR.

WQNESSES Aug. 14, 1928. 1,680,973

J. FELBEL TYPEWRITING MACHI NE Filed April 8, 1926 3 Sheets-Sheet 3 wn'wesszs v INVENTQR Patented Aug. 14, 1928.

1 UNITEDSTATES moon i nnnnnor NEW YORK, N. Y., ASSIGNOR T REMINGTON TYPEWRITER coM- PANY, onrmoN, NEW YORK, A conronarroNor NEW YORK.

TYPE-WRITING MACHINE.

Application filed April 8,

Myinvention relates to typewriting machines and has for its chief ob ect the provision of new and improved means for and methods of du licatin typewritten copies,

5 the term, dup icating being used in the broad sense of producing any desired number of typewritten copies of matter at a. single operation. i i

To the above and other ends which will 10 hereinafter appear,iny invention consists in the. methods of producing duplicate copies and also in the features of construction, comminations of devices and arrangements of parts hereinafter described and particularly )5 pointed out in the claims.

A primary feature of my invention resides in a. method of making the work sheet or sheets readyifor use or adjusting them in place, which method broadly stated involves 2 ,adjusting the paper on the platen apart from or separated from the machine, the platen with the adjusted paper thereon being then applied to the machine in condition to receive the writin without'any further adjustment or manipulation of the paper. In carrying out my inventionin the present instanceI have made vuse of a worksheet or work form of the character disclosed in the patent to E. Z. Lewis No. 932,713, dated August 31, 1909.

Said work sheet, sometimes referred to as a multitple work or form sheet, is of the style which is wound or wrapped, together with a carbon or duplicating sheet a plurality of times around the platen, [each complete wrap, softo-spea-k, orwinding being devotedto one work form only, so tha't the number of reproductions depends upon the number of times the sheet is wrapped on or around the platen. To carry out my idea conveniently I providea platen which is constructed to be readily detached from its hearings in the carriage of the typewriting machine and applied to a conveniently disposed table or sup ort on .which area supply of the work 5 eetsor forms and the uplicating material orcarbon paper. The-platen preferably carries a, clamp or gripping device by which the work forms may be connected to the platen, so that when it is rotated by-a hand piece or handle associated with thetable, the clamped work sheet and the duplicating materialare wound in place, the'rotation :being continued until the work sheet is fully wrapped on, after which the platen is re- "placed in the typewriting machine in readi- 1926. Serial No. 100,556.

ness for the writing to be begun. It will be seen, then, that my invention contemplates both the reproducing method involving the removal of the laten from the typewriting machine, thead1usting of the paper in place thereon and the return of the platen with the paper to the typewriting machine ready for writ ng, and also means for practicing the method of carrying it out, said means comprising an improved platen bearing enabling the platen readily to be detached from the typewriting machine,-and a hearing or sup port apart from said machine combined with turning devices whereby the laten may conveniently be rotated or handed in adjusting the paper outside'of the machine so that the platen and paper may be put-in the typewriting machine all ready for use.

However, as will more clearly appear from what follows, it'is to be understood that the practising of my invention is not confined to the preferred method and means of carrying it out as outlined above. The platen, for example, need not be applied to an outside or separate bearing and rotated by a handle to wind the paper thereon, but instead, as appears from certain of the figures of the accompanying drawings, the platen may be manipulated or rotated 'to wind on the paper without the assistance of any outside means or mechanism. Moreover,'my invention contemplates within its scope the preparation of a considerable number of platens with work sheets orform sheets in place thereon, which platens may be distributed to the operators from a common source of supply, such prepared platens replacing other platens carrying work forms on which the 'typewriting has been completed. I

My invention will bedescribed and explained more fullyfandin detail in conwherein i Fig. 1 is'a fragmentary front elevation,

partly in section, "of the platen carrier or carriage and platen of a typewriting machine constructed in accordance with my inmotion with the accompanying drawings,

Fig. 4 is a detached perspective view of the right-hand platen head or member.

Fig. 5 is a fragmentary end elevation, partly in section, of a platen support and platen and rotating devices for winding a work sheet on the platen.

Fig. 6 is a side elevation of the parts shown in Fig. 5.

Fig. 7 is a fragmentary sectional view taken longitudinally of the platen and showing the latching mechanism at the lefthand end thereof.

Fig. 8 is a fragmentary perspective view of the left-hand end portion of the platen, detached. i

Fig. 9 is a view illustrating themanipulation of the platen to wind on the form sheet or work sheet by hand, thus dispensing with the winding mechanism shown in Figs. 5 and (i.

Fig. 10 shows the platen, with the work sheet and carbon paper fully wound and in the hand of the operator, ready to beplaced in the typewriting machine, whether thus wound in accordance with Fig. 9 or Figs. 5 and 6.

As a matter of convenience I have shown my invention applied to the carriage and platen of the Remington No. 12 typewriting machine, although, of course, it is to be understood that the invention may be readily made use of in connection with the platens of other typewriting machines. The Remington No. 12 platen is equipped with platen release mechanism for afit'ording disconnection between the platen and its line spacing ratchet wheel, which mechanism is of the general character disclosed in the patcut to lVoodward No. 784,369, granted March 7, 1905. However, this platen release mechanism employs long grippers which extend from the line spacing ratchet wheel into the interior of the platen to a considerable distance, and since such grippers would interfere with the ready detachment of the platen from its hearings in the ma chine, which ready detachment is essential to the carrying out of my invention in the best way, I have found it necessary to modifv the platen disconnecting mechanism of the No. 12 Remington machine, so as to provide short grippers which do not extend within the body of the platen. The use of this new style of gripper requires certain other changes in the regular construction, although the principle thereof is retained.

Referring first to the construction dis closed in Figs. 1 to 8 inclusive of the draw ings, there are mounted above the top plate 1 of the No. 12 Remington machine, front and rear fixed guide rails, of which only the rear rail 2 is shown herein. Said rails support a carriage comprising a truck and a shiftahle platen frame, the truck comprising a rear bar or rail 3 from which extend forward side or end bars 4, the end bars being connected at their front end portions by a front bar or rail not shown herein. Shiftably mounted on the truck by means including links 5 and 5 is a platen frame comprising a cross bar 6 that connects the lower portions of end bars 7, which at their upper end portions are connected by a cross rod 8. Mounted on the carriage is a rotary platen comprising a core 9 of wood and a sheath 10 of rubber, or the like. The platen is provided with circular end plates 11 screwed at 11, Fig. 7, to the core and having their peripheries covered by the rubber sheath. llach end plate is formed with a diametrical rib or spline 12 which engages with grooves in cooperating members supported on the opposite ends of the carriage, whereby the platen is detachably supported in said carriage. The said cooperating members are of different constructions and mountings and will be separately described. The'left-hand member 13 is cylindrical in shape and formed at its right-hand face with a groove or seat 11 which receives the associated rib 12. At its left-hand end the member 13 is provided with a hub 15 which is bored to receive the inner end of a stub shaft or platen axle 16 secured in place by a cross pin 17. ()n the outer end of the stub shaft is the usual finger wheel'lS. The mounting of the stub shaft substantially corresponds with that found in the No. 12 Remington machine. The shaft is enclosed within a tube 19 which terminates at its inner end in a flange 20. The outer face of the tube at its right-hand portion is threaded through a plate 21 secured by screws 22 to the inner face of the associate end bar 7, said end bar being formed with an opening 23 through which the tube passes. ,Said tube is secured in place or clamped to the plate 21 and the end bar by a clamping nut'24. A wire spring is coiled around the exterior ofthe tube and provides abearing or bumper, the spring normal] Y resting on the case shift stop screw 26 which projects slightly above the bottom of an opening 27 in the end bar 4. At the top of said opening is a corresponding downwardly projecting stop screw 28 which cooperates with the coiled spring bumper to limit upward shifting movements of the platen in the usual manner.

Both ends of the platen are provided with spring pressed latches for preventing lateral displacen'ient ot' the platen relatively to its supporting members. Each latch, as best appears from Figs. 1, 7 and 8, comprises an arm 29 pivoted at 30 to bearing cars 31 on the companion plate 11. The arm 29 is seated in a cut-out 32 formed in the end of the platen behind the associated plate 11 and at its lower or inner end is provided with an outward extension 29 which extends outward through an opening 33 in the end lUlJ plate 11 and into a notch orunder-cut 34 in the associate rib12; Theextension or tongue 29 of the lefthand latch also cooperates with a cut-out or slot-wa Y 35 formed in the inner face of the mem er 13. A coiled spring 36 seated in a circular depression??? fits loosely at its outer end over a'projection 38 ont-he latch and tends constantly to press to overcome the associate spring 36and-withdraw the latch from operation, as hereinafter more fully set forth. 7

The ribor spline 12 of the right-hand plate 11 interseats with a slot-way 40 (Fig. 3) formed diametrically in a cylindrical cooperating member 41, said member at its inner end being provided with a slot-way 42 which receives the tongue 29 ot the ass-ociate latch, in correspondence wlth the slot- I way of the lefbhand member 13. At its the outer end of the body portion 46 to right-hand end portion the member41 is provided with a flange 43, and both the flange and the right-hand end portion of the body ofthe member 41 are hollowed out as indicated at 44 to fit over theinner end of a head or clutch-supporting member desig nated as a whole by the numeral45. Said member is best known in its entirety in Fig. 4. It comprises a cylindrical body portion 46, a circular flange 47 projecting from the middle of the bodyportion, and a rightwardly extendin hub 48. The member 45 is centrally here as indicatedat 49 and is provided with diametrically opposite slots or seats 50 and also with atransverse kerf or cut-out 51. It is adapted to be detachably secured to the member41 by screws 52. Adapted to bear rotatively on the body portion 46, to the right of the flange 47 is an annulus 53, the outer periphery of which is formed with the usual set of line spacing ratchet teeth 54. The toothed annulus or ratchet wheel 53, 54 is held from outward displacement by a plate 55 abutting againstwhich it is suitably secured. A flanged tube 57 passes through the right-hand end bar 7 and is locked thereagainst by a check nut 58. Fit-ting in the inner end of the tube or hearing 57 is the hub 48 ofthe member 45, while the outer end portion of saidtube has fitted into it a short or stub tube or housing 59 which covers the right-hand platen shaft or axle 60. Outside the tube 59 said axle receives the usual fingerwheel 61 to which the tube 59 is secured. Surrounding the tube 57 is a coiled wire coveringor bumper 62 correspondin to the spring bumper 25 at. the left. Said bumper 62 rests on the right-hand lower screw stop 26, and is adapted when the platen is shifted, to contact with theupper screw stop 28, thescrew stops projecting through the opening 27. in the right-hand end bar 4. i

Normally the ratchet wheel 53, .is

clutched to the platen so that when the usual hand actuated line spacing pawl co-acts with said ratchet wheel it will force the plat en to turn therewith. Said ratchet wheel also cooperates with the usual detent roller 63 to maintain the platen-in line spacing positions and prevent accidental rotary displacement thereof The clutching means between the line spacing wheel 53, 54 and the platen comprise a pair of grippers 64 which are seated in the cut-outs 50 in the member 45. These grippersare formed with slots 65 providing arms which embrace the inner flange of the ratchet wheel, and are also formed with notches or roundedportions which are adapted to bear on the bottoms of the seats 50. The inner .end portions of the grippers are provided with inclined or cam edges 66 which cooperate with like edges 67 on the opposite end portions of a head 68 which is secured to the inner end of the shaft 60 and fits slidably in the slot 51 of the member 45. A wire spring 69 housed within the tube 59 is coiled-around the rightthis position the sides 'ofthe slots 65 of the grippers bear effectively against the opposite faces of the ratchet Wheel. 53, 54, clutching said ratchet wheel so that it willturn the platen when the line spacing mechanism is actuated. It will be seen that the connection of. the ratchet wheel with the platen is throughthe grippers 64, the'member 45 in which these grippers areflconfined, and the member 41 which is fast to thelmember 45 and which has a spline and slot connection 12, 40 with the right-hand end portion of the platen. Also it will be seen that when the finger wheel 61 is pushed in, it releases or disconnects the grippers or clutch members 64, so that if the finger wheel 61be turned, rotary motion will be transmitted from it to the platen through the shaft 60,.

the head 68,.slot 51,- member 45, member 41 and spline and slot connection 12, 40.

The usual pressure rolls 72 and 7-3 are associated with the platen, the rolls 72 being at the rear and the rolls 7 3 at the front side thereof. Also the platen itself is preferably equipped with a clamping contrivance comprising, as shown in Figs. 1, 5, 6 and 8, a clamping bar 7st having a rounded underface and a top face that is are shaped to conform to the periphery of the platen. The bar is seated in a longitudinal depression in the surface of the platen and has arms 7 6 extending downward from its ends, said arms being pivoted at 77 to the plates 11. These arms are provided with finger pieces 78 for manipulating the clamping device or bail 74, 76, and the tail portions of the arms 76 have outwardly extending lateral pins 79 which are engaged by the free ends of springs 80, secured by screws 81 to the plates 11. The construction is such that the springs tend to maintain'the bar 74 seated in the groove 75. By pressing against the finger pieces 78 the bar may be swung out of the groove against the spring pressure, allowing paper to be inserted between the bar and the platen, which paper will be gripped or clamped against the platen by the bar 74 when the finger pieces are re leased.

In order that the platen may be conveniently manipulated when detached from the machine, there may be, and preferably are, provided controlling devices comprising an oblong table or support 82 (Figs. 5 and 6) which may be mounted on posts or legs 83 and provided at its sides with adjustable angular guide members 84. Ears 85 extend laterally outward from one end of the table and provide bearings for stub-shafts 86 which at their inner ends carry heads 87 formed with diametrieal grooves 88 which are adapted to receive the ribs or splines 12 at the ends of the platen. One of the shafts 86 is provided at its outer end with a collar .90 secured by a cross pin 90, said collar and the companion head 87 cooperating with the companion bearing member 85 to prevent endwise displacement of the shaft 86. The other shaft 86 carries a crank 91 having a hub 92-through which passes a cross pin 93 whereby the crank is secured to the shaft so that when the handle or finger piece 94 is turned, the shaft and the head or bearing 87 will be turned with it.

In carrying out my reproducing method, in the present instance, the platen may be readily detached from the typewriting machine by pressing the finger pieces 39 so as to withdraw the latch tongues 29 from engagement with the slots 35 and -12. This permits th" platen to he slid out of its supports, the splines or ribs 12 being withdrawn from the slot-ways or seats 14 and 40 in the respective heads or members 13 and 41. It will be understood that the heads 13 and 41 are not affected by the withdrawal or removal of the platen, but that they, together with their associate parts, remain undisturbed in the platen frame. The detached platen may then be applied to the bearings 87 on the table or support 82, 83, the finger pieces 39 being pressed in so that the latches are drawn inside the plates 11, permitting the ribs 12 to he slid down into the grooves 88 of the heads 87. These heads are provided with slots 87 in which the tongues 29" of the latches seat when released, thus interlocking the platen at its ends with its supports 87. The construction is such that if now the finger piece 9-l be operated to actuate the crank 91, the platen will be turned, being rotatively supported by the shafts 89 which will turn in the hearings or cars One or more sheets of paper 95, associated with a corresponding sheet of reproducing or duplicating material or carbon paper 96 are supported on the upper face of the table 82 between the guides 84: which are suitably adjusted for cooperation with the side edges of the sheets. The work sheet is or may be a form sheet of the style disclosed in the aforesaid Lewis Patent No. 992,713. Each of the forms thereon occupies a length on the sheet substantially the equivalent in length to the circumference of the platen, and the form sheet may he of sufiicient length to contain one, two, three or more forms, the carbon or reproducing sheet being of corresponding length. The forms are of graduated lengths to compensate for the increasing periphery of the platen due to the progressive winding thereon of the form sheet; so that the several forms will all be in register when the winding has been completed. As illustrated, the form sheet 95 is of a length sufiicient for two forms,.and wraps twice around the platen. \Vith the platen supported on its bearings at the end of the table as described, said platen is maintained with the clamp at the top. and the finger pieces 7 8 are actuated to open the clamp, after which the ends of the form sheet and the duplicating sheet are passed under the clamp which is then released, thereby clamping them to the platen. The platen is then rotated by means of the handle 94 in the direction of the arrow, Fig. (5, to an c.: tent sufficient to wind the duplicating and form sheets completely thereon. Next the finger pieces 39 are pressed to withdraw the latches 29, 29 permitting the platen to he slid out of its hearings on the table. The platen with the work sheet or form sheet and carbon completely wound thereon and properly adjusted to begin the writing is next returned to the typewriting machine, the latches at the ends of the platen being held out of operation until it slid back and reconnected with the grooved members 13, 41, after which the latches are released so as to re-lock the platen in place in the machine. At the end of the winding operation and in transferring the platen to the machine, the free end portions of-the form sheet and carbon may stick up or stand away from the platen as indicated at :v in Figs. 1 and 5. However, these free end portions will be taken care of by the feed rolls72' and 73 and other controlling devices on the car riage frame as the platen is rotated. It will i be understood that in this method of male ing duplicate copies it is not contemplated that the platen willmake more than one full I revolution. The writing may then be proceeded with, the platen bein line spaced between the difierent lines o typewriting in the usual way, it being understood that each line printed through the regular ribbon on the outer form will be du licated on the underlying form or forms t rough the carbon sheet. When the forms have been completelg filled in, the platen may be again detached om the carriage, the written form and its duplicating stri may be unwound and removed, and a resh form and duplicating strip ma be wound on the platen, all in the describe manner, this process being repeated as often as desired. a

As has been stated, while I prefer to employ a winding mechanism for turning the platen when it is outside of the machine, such mechanism is not essential to the practising of my invention, broadly considered, a fact which I have endeavored to bring out more clearly by the illustrations designated as Figs. 9 and 10. In the construction illustrated by these figures, the platen employed, and which is designated as 97 corresponds in all respects with the platen 10 of the first described construction, except that the platen-carried clamp for the paper is dispensed with. An ordinary table or surface for supporting the platen outside of the machine may be used, but I prefer a su port orplate 98 which is provided at its sides with a series of holes 99 disposed in pairs at suitable intervals and adapted to receive detachable and adjustable pegs or stops 100. The holes 99 are spaced apart lengthwise of the table at distances corresponding to the number of windings on the platen, so that the platen when rolled along the surface of the plate 98 will make a complete revolution between each of the pairs of pegs at the opposite sides of said plate. As shown. herein, the stops or pegs 100 are arranged in the third pair of holes, thus allowing the platen to be rolled along the late far enough to wind the form sheet 101 t ree times around the platen, the form sheet chosen for illustration being of suflicient length for this purpose and being provided with three forms. Also at the head of the first form there is a blank s ace equivalent in length to a quarter of t e circumference of the platen, this being rovided for convenience of manipulation. The platen after having been detached from the machine, as inthe prior construction, is

applied to the end of the plate 98 as shown, the operator having no mechanism to assist him and relying solely on his handsf After the end of the sheet or strip 101, together with the usual duplicating sheet 10:2, has been wrapped partly around the platen, the platen is rolled along the plate or surface 98'by the hands of the operator, the sheet and duplicating strip winding on as it is rolled leftward. Consequently when the platen is finally arrested by the stops 100 as shown by dotted lines in Fig. 9, the work sheet and duplicating strip will be completely wound in place, as will be understood from Fig. 10, which shows the platen in the hand of the operator with the work sheet and duplicating stri fully wound thereon and ready to be applied to the typewriting machine to begirl the writing. Y 7

The pins 100 not only serve as stops for the platen but also act as paper gages or guides; -Preliminary to winding the paper or work form on the platen, said form is placed on the table against the guides or pins 100 and thereby is positioned properly, so thatit is then only necessary to start the platen with the paper from the point of beginning to have the paper correctly wind thereon. In the drawing the paper is positioned against the pins which are located in the third set of holes, inasmuch as the paper is to be wound on the platen three times. If there are to be only two windings the paper would be gaged by the pins inserted in the second set of holes, and so on. These pins, of course, may be connected together to act as one, in the nature of a bar or fence. The construction disclosed in Figs. 9 and 10 is not claimed specifically in the present case. From the foregoing it will be perceived that the essential of my improved method resides in adjusting the paper on the platen while it is detached or apart from the typea writing machine, so that the platen may be applied to the machine with the paper completely adjusted and ready for use.

As far as the mechanical devices are concerned they may be greatly varied and any suitable form or construction of detachable platen may be used instead of the forms herein shown.

What I claim as new and desire to secure by Letters Patent, is

1. The combination with the detachable platen of a typewriting machine, of a table or support, hearings on said table for said platen, platen rotating means associated with said bearings and a guide on said table for facilitating the application of paper to the platen when it is mounted on said bearings.

2. The combination with the detachable platen of a typewriting machine, said platen being provided with a paper clamp which is detachable with it, of a table or sup ort, bearings for said platen on said tab e, a

handle on said table for rotating said platen, means for automatically connecting said handle with said platen when said platen is applied to said hearings, and a guide on said table for facilitating the introduction of paper from said table into the control of the paper clamp.

23. A platen detachable from its hearings in the typewritiug machine and provided at its ends with means for temporarily engaging in set relatitmship with a rotating mechanism fixedly arranged on a support located exterior-1y of the typewriter whereby a form sheet and a duplicating sheet may be wound together on said platen while it is detached.

l. A detachable platen provided at its ends with means {or temporarily engaging in set relationship with a rotating mechanism fixedly arranged on a support located exteriorly of the typewriter whereby a form sheet and a duplicating sheet may be wound together on said platen and whereby said platen may thereafter be disengaged from said rotating mechanism and restored to working position in the typewriter with the form sheet and the duplicating sheet ready to be written on.

5. The improved method of preparing the platen of a typewriting machine for producing manifold copies which consists in winding on the platen upon a table surface a plurality of times a work sheet and a duplicatin; sheet together whic have prex 'iously been laid out Hat on said table surface.

6. 'lheimproved method of preparing the platen of a typewriting machine for produc ing manifold copies which consists in laying the paper and duplicating strip on a plane surface to a gage and then rolling, the platen thereon and winding the paper and duplicating strip the requisite number of times.

7. In combination nith a t 'pewritin,g machine, an exteriorly arranged paper and platen support, said typewriting machine being provided with a detachable platen adapted to be transferred to said support and while thereon have applied thereto the paper from the support and then returned to said typewriting machine with said paper thus applied.

Signed at the borough of Manhattan, city of New York, in the county of New York and State of New York this 5th day of April, A. D. 1926.

JACOB FELB I'LL. 

